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hangup Ãû³ÆµÄÀ´ÓÉ
ÔÚ Unix µÄÔçÆÚ°æ±¾ÖУ¬Ã¿¸öÖն˶¼»áͨ¹ý modem ºÍϵͳͨѶ¡£µ±Óû§ logout ʱ£¬modem ¾Í»á¹Ò¶Ï£¨hang up£©µç»°¡£ ͬÀí£¬µ± modem ¶Ï¿ªÁ¬½Óʱ£¬¾Í»á¸øÖÕ¶Ë·¢ËÍ hangup ÐźÅÀ´Í¨ÖªÆä¹Ø±ÕËùÓÐ×Ó½ø³Ì¡£
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1. nohup
nohup ÎÞÒÉÊÇÎÒÃÇÊ×ÏÈÏëµ½µÄ°ì·¨¡£¹ËÃû˼Ò壬nohup µÄÓÃ;¾ÍÊÇÈÃÌá½»µÄÃüÁîºöÂÔ hangup Ðźš£ÈÃÎÒÃÇÏÈÀ´¿´Ò»Ï nohup µÄ°ïÖúÐÅÏ¢£º
NOHUP(1) User Commands NOHUP(1)
NAME
nohup - run a command immune to hangups, with output to a non-tty
SYNOPSIS
nohup COMMAND [ARG]...
nohup OPTION
DESCRIPTION
Run COMMAND, ignoring hangup signals.
--help display this help and exit
--version
output version information and exit
¿É¼û£¬nohup µÄʹÓÃÊÇÊ®·Ö·½±ãµÄ£¬Ö»ÐèÔÚÒª´¦ÀíµÄÃüÁîǰ¼ÓÉÏ nohup ¼´¿É£¬±ê×¼Êä³öºÍ±ê×¼´íÎóȱʡ»á±»Öض¨Ïòµ½ nohup.out ÎļþÖС£Ò»°ãÎÒÃÇ¿ÉÔÚ½áβ¼ÓÉÏ"&"À´½«ÃüÁîͬʱ·ÅÈëºǫ́ÔËÐУ¬Ò²¿ÉÓÃ">filename 2>&1"À´¸ü¸ÄȱʡµÄÖØ¶¨ÏòÎļþÃû¡£
nohup ʾÀý

[root@pvcent107 ~]# nohup ping www.ibm.com &
[1] 3059
nohup: appending output to `nohup.out'
[root@pvcent107 ~]# ps -ef |grep 3059
root 3059 984 0 21:06 pts/3 00:00:00 ping www.ibm.c


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